Dell T5400 Quick Reference Manual

Also see for Precision T5400: User guide Quick reference guide Specification Quick reference guide Quick reference guide

26 Quick Reference GuideCleaning Your ComputerCAUTION: Before you begin any of the procedures in this section, follow thesafety instructions in theProduct Information Guide.Computer, Keyboard, and MonitorCAUTION: Before you clean your computer, disconnect the computer from theelectrical outlet. Clean your computer with a soft cloth dampened with water.Do not use liquid or aerosol cleaners, which may contain flammable substances.• Use a vacuum cleaner with a brush attachment to gently remove dust fromthe slots and holes on your computer and from between the keys on thekeyboard.NOTICE: Do not wipe the display screen with a soap or alcohol solution. Doing somay damage the antiglare coating.• To clean your monitor screen, lightly dampen a soft, clean cloth with water.If possible, use a special screen-cleaning tissue or solution suitable for themonitor’s antistatic coating.• Wipe the keyboard, computer, and plastic part of the monitor with a softcleaning cloth moistened with water.Do not soak the cloth or let water drip inside your computer or keyboard.Mouse (Non-Optical)1 Turn the retainer ring on the underside of your mouse counterclockwise,and then remove the ball.2 Wipe the ball with a clean, lint-free cloth.3 Blow carefully into the ball cage to dislodge dust and lint.4 Clean the rollers inside the ball cage with a cotton swab moistened lightlywith isopropyl alcohol.5 Recenter the rollers in their channels, as needed. Ensure that fluff fromthe swab is not left on the rollers.6 Replace the ball and retainer ring, and then turn the retainer ring clockwiseuntil it clicks into place.